... 40 6a. 27. Oka Y, Tsuboi A, Murakami M, Hirai M, Tominaga N, Nakajima H, Elisseeva OA, Masuda T, Nakano A, Kawakami M, Oji Y, Ikegame K, Hosen N, Udaka K, Yasukawa M, Ogawa H, Kawase I, Sugiyama ... Transplantation, Niigata University Medical and Dental General Hospital, Niigata, Japan 3. Division of Hematology, Graduate School of Medical and Dental Sciences, Niigata University, Niigata, ... Yoshihiro Oka6, Haruo Sugiyama6 and Masuhiro Takahashi1 1. Laboratory of Hematology and Oncology, Graduate School of Health Sciences, Niigata University, Niigata, Japan 2. Division of Stem...